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Texas Instruments TLE2021QDREP
- Part No.:
- TLE2021QDREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2021QDREP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,833
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Product details
Overview
TLE2021QDREP from Texas Instruments is a single-channel, high-speed, low-power precision operational amplifier designed for rail-to-rail input (including negative rail) and robust output drive in extended-temperature industrial and automotive systems. It delivers 2 MHz unity-gain bandwidth, 0.45 V/μs slew rate, ≤500 μV max input offset voltage, 300 μA max supply current, and phase-reversal protection - enabling accurate low-level signal conditioning in 5-V single-supply or ±15-V split-supply configurations.
For engineers reviewing the TLE2021QDREP datasheet, TLE2021QDREP pinout, TLE2021QDREP application, or TLE2021QDREP equivalent, key selection criteria include its −40°C to 125°C Q-suffix qualification, Excalibur-process bipolar architecture, low 19 nV/√Hz input noise at 1 kHz, stable dc performance over time (0.005 μV/month drift), and SOIC-8 packaging compatible with high-density PCB layouts.
Technical Context
The TLE2021QDREP uses Texas Instruments' Excalibur complementary bipolar process with isolated vertical PNP transistors, enabling higher unity-gain bandwidth and slew rate than legacy OP21-based designs. Its bias circuit ensures exceptional stability of offset voltage, bias current, and supply current across temperature and time.
It features phase-reversal protection that prevents output inversion when either input falls below the negative supply rail, and supports common-mode input voltage ranges extending to the negative rail - critical for single-supply sensor interfaces and precision instrumentation front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 μA max - enables ultra-low-power operation in battery-backed or energy-constrained systems |
| Unity-Gain Bandwidth | 2 MHz typ at ±15 V - supports stable closed-loop gain ≥1 with adequate phase margin (46°) |
| Slew Rate | 0.45 V/μs min at ±15 V - ensures faithful reproduction of signals up to ~70 kHz full-power sine wave |
| Input Offset Voltage | 500 μV max over −40°C to 125°C - maintains accuracy in wide-temperature industrial sensing |
| Input Noise Voltage | 19 nV/√Hz typ at 1 kHz - minimizes contribution to system noise floor in precision amplification stages |
| Common-Mode Input Range | Includes negative rail (e.g., −15 V to +13.2 V at ±15 V supply) - enables direct interfacing with ground-referenced sensors |
| Phase-Reversal Protection | Yes - eliminates catastrophic output state flip during input overdrive below VCC−, improving system reliability |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 8-pin plastic small-outline integrated circuit with standard 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null offset adjustment terminal (used with external potentiometer for fine-tuning VIO) |
| 2 | IN− | Inverting input - high-impedance node for feedback network connection |
| 3 | IN+ | Non-inverting input - accepts signal source with common-mode range including VCC− |
| 4 | VCC−/GND | Negative supply or ground reference - dual-role pin supporting single- or split-supply operation |
| 5 | NC | No internal connection - must be left unconnected per datasheet |
| 6 | VCC+ | Positive supply - accepts 5 V (single) or up to ±20 V (split) per absolute max ratings |
| 7 | OUT | Amplifier output - capable of ±20 mA drive into resistive loads |
| 8 | OFFSET N2 | Second null offset adjustment terminal - used with Pin 1 for balanced trimming |
Key Features
| Feature | Design Value |
|---|---|
| Extended Temperature Range | Qualified from −40°C to 125°C (Q-suffix), meeting automotive under-hood and industrial control requirements |
| Low Power + High Speed Trade-off | 2 MHz GBW and 0.45 V/μs slew rate achieved at only 300 μA supply current - rare combination for precision bipolar op amps |
| Rail-Inclusive Input Stage | Common-mode input extends to VCC−, enabling direct interface with 0 V–referenced transducers without level-shifting circuitry |
| Offset Drift Stability | 0.005 μV/month typical long-term drift - ensures calibration integrity over years of field operation |
| Robust Absolute Maximum Ratings | ±20 V supply, ±0.6 V differential input, unlimited short-circuit duration - simplifies protection design |
Applications
| Strain Gauge Signal Conditioning | Automotive Cabin Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail input and low noise to preserve SNR of microvolt signals. Use Value: 19 nV/√Hz input noise and 500 μV max VIO ensure <10 ppm measurement error over full temperature range. | Use Scenario: Conditioning analog output from NTC thermistors in HVAC control modules operating in vehicle cabins. IC Role / Device Role / Timing Role: Single-supply (5 V) signal conditioner with input range down to GND, enabling direct thermistor voltage division without biasing. Use Value: Phase-reversal protection prevents erroneous HVAC actuation during cold-start transients where sensor leads may dip below GND. |
| Industrial 4–20 mA Loop Receiver | Medical ECG Front-End Buffer |
Use Scenario: Converting loop current to voltage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-power I-to-V converter with stable gain accuracy across ambient temperature swings. Use Value: 2 μV/°C tempco and 300 μA supply current allow thermal compensation algorithms to remain effective while minimizing self-heating error. | Use Scenario: First-stage buffer for dry-electrode ECG acquisition in portable patient monitors. IC Role / Device Role / Timing Role: High-input-impedance, low-noise follower isolating electrode interface from downstream filtering/ADC stages. Use Value: 50 nA max input bias current avoids polarization errors on high-impedance skin contacts; 0.005 μV/month drift ensures calibration validity between clinical recalibrations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift CMOS architecture; 0.02 μV/°C offset drift vs. TLE2021QDREP's 2 μV/°C; higher 350 μA supply current | Better for sub-μV dc stability over temperature; less suitable for high-slew-rate AC-coupled stages due to chopper artifacts | Select OPA2333AIDR when ultra-low drift dominates; retain TLE2021QDREP for combined speed, low power, and bipolar linearity |
| LM7332MAX/NOPB | Rail-to-rail I/O; 25 V/μs slew rate; 1.8 mA supply current; no phase-reversal protection | Higher drive capability and bandwidth, but consumes >5× more power and lacks input fault tolerance | Choose LM7332MAX/NOPB for high-speed active filters; prefer TLE2021QDREP for low-power, fault-resilient sensor front-ends |
Compared with OPA2333AIDR and LM7332MAX/NOPB, the TLE2021QDREP uniquely balances 2 MHz bandwidth, 0.45 V/μs slew rate, and 300 μA supply current while delivering phase-reversal immunity and −40°C to 125°C qualification - making it optimal for cost-sensitive, thermally demanding, and safety-aware analog signal chains.
Availability
TLE2021QDREP is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin electronics, and medical portable device signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2021QDREP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLE202x-EP product line was engineered for high-reliability applications requiring extended temperature operation, DMS support, and controlled baseline manufacturing - targeting aerospace, defense, and automotive subsystems where long-term parametric stability is critical.
FAQ
What is the maximum operating temperature range certified for the TLE2021QDREP?
The TLE2021QDREP is characterized and qualified for continuous operation from −40°C to +125°C, meeting the full automotive temperature grade requirement. This rating is verified per JEDEC standards including HAST, temperature cycling, and bond intermetallic life testing - ensuring reliability in under-hood and industrial control environments where thermal stress is severe.
Does the TLE2021QDREP support single-supply operation, and what is its input common-mode range in that configuration?
Yes, the TLE2021QDREP supports true single-supply operation at 5 V. With VCC+ = 5 V and VCC−/GND = 0 V, its common-mode input voltage range extends from 0 V to +3.2 V - inclusive of the negative rail (ground). This allows direct connection to ground-referenced sensors such as thermistors or bridge elements without external level-shifting circuitry.
How does the phase-reversal protection in the TLE2021QDREP improve system robustness?
The TLE2021QDREP incorporates dedicated phase-reversal protection circuitry that prevents output polarity inversion when either input is driven below the negative supply rail (e.g., below GND in single-supply use). This eliminates unexpected latch-up or false triggering in sensor interfaces exposed to transient overvoltage or ESD events - a critical reliability feature absent in many general-purpose op amps.
What is the typical input offset voltage drift over time for the TLE2021QDREP, and how is it measured?
The TLE2021QDREP exhibits a typical input offset voltage drift of 0.005 μV per month, extrapolated from accelerated life testing at 150°C using the Arrhenius model (activation energy = 0.96 eV). This value reflects long-term parametric stability under normal operating conditions and supports multi-year calibration intervals in precision instrumentation and medical devices.
Can the TLE2021QDREP be used in unity-gain stable configurations, and what is its phase margin?
Yes, the TLE2021QDREP is unity-gain stable with a measured phase margin of 46° at ±15 V supply and 25°C. Its Excalibur-process internal compensation ensures stable operation in voltage-follower, non-inverting, and inverting configurations down to gain = 1 - confirmed by datasheet Figure 3 and validated across the full −40°C to 125°C temperature range.
TLE2021QDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.65V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 120 µV
- Current - Supply:
- 200µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2021QDREP FAQ
1.How can I place an order for TLE2021QDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021QDREP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE2021QDREP reliable?
The price and inventory of TLE2021QDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021QDREP is usually 5 days.
3.What payment methods are accepted for TLE2021QDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021QDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021QDREP?
TLE2021QDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021QDREP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE2021QDREP?
For technical support, including TLE2021QDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021QDREP requirements.
6.How does Aetrix verify that TLE2021QDREP is sourced from the original manufacturer or authorized distributors?
All TLE2021QDREP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE2021QDREP meets industry standards.
7.What is the process for return or replacement of TLE2021QDREP?
All TLE2021QDREP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021QDREP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE2021QDREP part is unused and in its original packaging.
Return procedure for TLE2021QDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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